When a horse is declared a non runner, any bets placed on that horse are typically voided, and the stake is returned to the bettor. In some betting markets, the odds may adjust based on the absence of the non runner, affecting other horses’ chances.
Non Runner Example
For example, if a bettor placed a wager on a horse expected to win, and that horse is announced as a non runner shortly before the race, the bettor will receive a refund for their stake, and the betting market will be updated to reflect the change in the field.